The objective of this study was to evaluate the quality characteristics of Sulgidduk added with cabbage powder. The moisture contents of Sulgidduk added with cabbage powder ranged from 37.2 to 33.7% and were significantly lower than those of the control. As the amount of cabbage powder increased, the L-value was reduced, while the a- and b-values were increased. In terms of textural characteristics, Hardness, Adhesiveness, Springiness, Cohesiveness, Gumminess, and Chewiness decreased with greater concentrations of cabbage powder. Sensory evaluation revealed that the favorite degree of color, flavor and taste received high increasing scores with increasing addition amounts of cabbage powder, while the Chewiness did not differ significantly (p<0.05) among the samples. The moistness found to be highest in the control, while it decreased as the amount of cabbage powder increased. The overall acceptance was highest as (6.00) for the Sulgidduk (CS6) that contained 6% of the cabbage powder. Overall, the results of this study indicate that adding 6% cabbage powder to Sulgidduk was produced the optimal results, and provided good quality characteristics and high overall acceptance.
The aim of this study was to evaluate the characteristics of muffin made with tagatose which substituted sugar. Moisture contents were measured and Texture Profile Analysis was carried out during 3 day storage. 3 types of muffin, T0 (no tagatose added, sugar was the only sweet taste source), T25 (tagatose : sugar = 25:75(w/w), and T50 (tagatose : sugar = 50:50(w/w) were prepared. As the tagatose contents increased, the Maillard reaction proceeded more, so the color of the muffin crust was darker. Moisture contents of muffins decreased during storage, up to 2 days of storage, moisture contents of T25 and T50 were higher significantly, but at the 3rd day of storage, no differences were detected among samples. In the texture profile analysis, hardness, chewiness and fracturability were higher as the tagatose contents increased. Springiness and cohesiveness did not show any differences between T0 and T25 significantly. In the sensory evaluation, T0 got the lower points on the crust color value, but the crust colors were not significantly different among samples. Other characteristics like crumb color, moistness, sweetness, flavor and overall acceptance were not different significantly. As a result, when synbiotic and low-calorie tagatose was partly added to muffin up to 50 % as sugar substitute, overall qualities of those muffins were not different with only sugar added ones, even moisture contents were higher but color was a little bit darker, so tagatose can be used on making healthy muffins successfully.
In order to investigate effects of dyeing conditions on the dyeing characteristics in silk during natural dyeing using indigo plants , various dyeing conditions including the temperature of dyeing solution, dyeing period, the concentration and pH of dyeing solution and mordants were treated. As the temperature of dyeing solution decreases low, the color of silk surface showed lower b value. The color of silk surface showed G line when the dyeing solution was $-5^{\circ}C$ and room temperature and GY line at more than $40^{\circ}C$. Coloring degree increased high as the temperature increases. Dyeing period showed no effect on the surface color, but as dyeing period was longer the coloring degree increased. When the concentration of dyeing solution was $1\~4\%$, the silk was colored to BG line and $5\%$ to B line. The coloring degree increased as the concentration of dyeing solution more increased. The pH of dyeing solution sensitively affected coloring of silk. The pH lower than 7 showed G line, pH 8 showed GY line and pH 9 showed YR line. Coloring degree decreased as pH was more increases. Surface color of silk was different according to the kinds of natural mordants and coloring degree was increased by the natural mordants.
Kim, Dong-Myong;Choi, Ji-Eun;Kim, Duck-Hoon;Lee, Jun-Tack
Journal of the Society of Cosmetic Scientists of Korea
/
v.37
no.1
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pp.43-53
/
2011
The conditions in fluid-bed processor for nanoencapsulation of azelaic acid-milk nano powder for acne nanocosmetics were optimized by response surface methodology (RSM). The maximum value of yield was 70.97 %. The yield was appreciably influenced by inlet air temperature, atomizing pressure, and feeding speed. The particle size increased with an increase in the feeding speed and a decrease in the atomizing pressure. The elution rate in saline solutions was appreciably influenced by inlet air temperature and atomizing pressure. The moisture content increased with higher atomizing pressure, which was demonstrated to be similar to the nanoencapsulation characteristics related to water activity. The Hunter's L and b values increased with an increase in the inlet air temperature. The optimum conditions estimated by RSM for the maximized values of yield, moisture content, particle size and elution rate in skin suitability were $67{\sim}73^{\circ}C$ of inlet air temperature, 0.6 ~ 0.8 mL/min feeding speed and 1.8 ~ 2.0 kg/$cm^2$ of atomizing pressure, respectively. These estimated values were in agreement with those measured by real experiments.
This study was performed to develop yut(Korean Traditional Candy), products using dried-persimmon, with the ratio of 5, 10, 15, 20 and $25\%$, and the quality characteristics were investigated. The proximate compositions of dried-persimmon were $29.67\%$ moisture, $1.76\%$ crude protein, $0.18\%$ crude lipids, $1.31\%$ crude ash and $3.92\%$ crude fiber, respectively. Brix of yut products were ranged from $81.5\%$ to $83.0\%$. With increasing the amount of dried-persimmon, hunter's color values of Land b were reduced. In the texture property, the addition of dried-persimmon increased hardness, fracturability, gumminess and chewiness, while decreased adhesiveness. Judging from texture, taste and overall acceptability of the yut product, the recommended substitution level of dried-persimmons was $10\%$. In consumer sensory score, the $twenties\~sixties$ gave high score of color, while the $thirties\~fifties$ gave high score of sweetness. Overall acceptance of yut products of $dried-persimmon$ were good in old-age consumers.
This study was carried out to evaluate the effect of the masting temperature on the phycochemical properties of the roasted Job's tears. Raw seeds were roasted for 20 min at 150, 170, 190, 210 or $230^{\circ}C$, were milled and extracted with hot water. The L and a values of the powder were sharply decreased or increased at the masting temperature of above $190^{\circ}C$, respectively. The b value was maximum at $190^{\circ}C$. Water absorption capacity of the powder and browning index of the extract were proportionally increasing with increasing the masting temperature. The pH of the extracts was decreased at the masting temperature of above $190^{\circ}C$. Total sugar content of the extract tended to be decreased until $170^{\circ}C$ and then be increased from $190^{\circ}C$. Content of phenolic compound of the extract was increased at the masting temperature of above $210^{\circ}C$. At the sensory evaluation of the extract, aroma and taste of samples masted at $170^{\circ}C$ and above $190^{\circ}C$, respectively were higher than those masted at the others. Overall acceptability of the extract was highest at $190^{\circ}C$.
The chemical components of chlorella powder and quality characteristics (texture, color and sensory evaluation etc.) of white bread added with chlorella powder in order to use as a new functional food material of chlorella powder were examined. The proximate composition was composed of crude protein 61.45%, crude fiber 13.47%, nitrogen free extract 13.15%, ash 6.35%, moisture 3.27% and crude fat 2.31%, respectively. The component of major minerals were P (1,478.94 mg%), K (250.54 mg%), Ca (147.24 mg%) and Na (107.26 mg%) and free sugar was composed of maltose 0.12%, glucose 0.09% and fructose 0.08%. The major amino acids of chlorella powder were glutamic acid(4,009.20 mg%), aspartic acid(3,017.72 mg%), proline(3,055.24 mg%), methionine(3,001.52 mg%) and histidine(2,951.06 mg%). The major fatty acids in chlorella powder were composed of linoleic acid and the amounts of those showed 34.27%. The volume tended to increase according to the addition of chlorella powder. Substituting chlorella powder with flour also resulted in decreased lightness, redness and yellowness of the white bread crust The color of white bread crust became darker as the amount of chlorella powder increased. The texture characteristics of white bread containing chlorella powder was no significant difference. The result of sensory evaluation by QDA (quantitative descriptive analysis) showed that overall acceptability of white broads containing 0.2% chlorella powder were higher than that of control without chlorella powder.
The favorable effect of ascorbic acid and cysteine on the improvement of rice bread quality was investigated by creating and comparing 6 experimental rice breads(RB-1 to RB-6). The RB-3 showed a relatively higher loaf volume, specific loaf volume and bread yield than the other breads. Crust and crumb color of breads were measured using a Hunter celery meter. The RB 5 and RB 6 showed the higher cut L-value than the other broads. As the proportion of the rice in the experimental breads increased, both the crust L-value and the crumb L-value showed higher values. According to the texture profile analysis, the hardness of the RB-1 to RB-3 were lower than those of the other breads. The springness of the experimental broads increased as the percentage of the rice in the breads increases. However, less proportions of rice to breads provided significantly lower level of the chewiness. The cohesiveness did not show any specific pattern by the proportion of rice to breads. The degree of retrogradation of the breads was accelerated when the breads contained more rice or when the breads had neither ascorbic acid nor cysteine. Therefore, RB 3, which contained ascorbic acid and cysteine and less rice, showed the highest retardation in the degree of retrogradation. In addition, the RB 3 showed the highest overall acceptance scores by sensory evaluation.
Ko Won-Jun;Ko Kyung-Soo;Kim Yong-Deog;Jeong Kwan-Woo;Lee Sang-Hyup;Koh Jeong-Sam
Food Science and Preservation
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v.13
no.4
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pp.421-426
/
2006
Preservation stability of the extract from dried green tea produced in Jeju, extracted at $55^{\circ}C$ for 15 min and bottled in PET container after filtration and then settled at $4^{\circ}C$, indoor at room temperature and outdoor, respectively, was estimated. Color L-value was almost constant but color of the extract became darkened during storage, especially in indoor storage. Main catechins of green tea extract were (-)-epigallocatechin, (-)-epigallocatechin gallate, epicatechin, (+)-catechin, epicatechin gallate in order, and the content of epigallocatechin was 53.8%. Nevertheless total catechin content was not changed in cold storage, and $4.7\sim10%$ of total catechins were reduced in outdoor or indoor storage after 14 weeks. Caffeine content were increased but total polyphenols were not changed largely during storage. Election donating abilities (EDA) showed more than 60% without influence of storage conditions and periods. Nitrite scavenging abilities (NSA) showed more than 90% at pH 1.2, but those were decreased gradually as pH increased, and then disappeared at pH 6.0. Color, polyphenols, antioxidant activities of extract were not so changed for more than 3 months. Microbial growth was not shown during same periods, due to heat treatment of the extracts at $95^{\circ}C$ for 10 min.
Journal of the Korean Society of Clothing and Textiles
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v.26
no.2
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pp.303-314
/
2002
The colors of apparel have become an important element to be used strategically in order to give differentiated character at the level of fiber and fabric production. The colors of apparel have a close relationship with the skin colors of consumers and their preference colors. This study was carried out to classify the skin colors of Korean elderly women into several similar skin colors and to analyse their preference colors. Sample size was 471 Korean elderly women. With color spectrometer, JX-777, we measured 4 points of the body; cheek with removing cosmetics off, forehead, rear neck and arm on the interior part near elbow. All subjects had been shown with 40 color chips and answered the preference colors of apparel and the preference colors. Data weirs analysed to classify skin colors using K-means Cluster Analysis and Duncan test. Independent variables for Cluster Analysis were 12 variables out of L value, a value and b value of 4 points. In doing so, we used SPSS WIN 10 statistical package. Findings were as follows: 1) The skin colors of the Korean elderly women were composed of skin colors of YR, R, and Y. 2) 355 subjects were classified into 4 kinds of skin color groups. 3) The average face color of type 1 was 6.7YR 5.1/4.3 and 56 observations out of 355 subjects were composed of Type 1 and of Type 2 was 6.1YR 6.1/4.5 and 166 observations out of 355 and of 3 Type 6. YR 4.8/4.2 and 75 observations out of 355 and of Type was 6.17 YR 5.7/4.7 and 58 observations out of 355. 4) The average skin color of Type 1 was 7.0YR 5.9/4.4 and of Type 2 was 7.2YR 6.3/4.2 and of Type 3 was 7.0YR 6.2/4.2 and of Type 4 was 7.6YR 5.4/4.2 respectively. 5) The mean values of 12 variables between the 4 classified face color and skin color groups showed significantly different except H value of skin color. 6) All 4 groups showed that the most preference color of apparel and the most preference color were 2.5R 5/14 respectively.
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